Product classification

HS code for Honing machine: 8460.40

Machine-tools, for honing or lapping.

Classification of honing machine under HS 8460.40

A honing machine is classified under HS code 8460.40. This classification is found within Chapter 84, which covers nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8460 specifically applies to machine-tools for deburring, sharpening, grinding, honing, lapping, polishing, or otherwise finishing metal or cermets by means of grinding stones, abrasives, or polishing products. Subheading 8460.40 is the specific designation for honing or lapping machines. These machines are characterized by their function of improving the geometric form and surface texture of a workpiece. Unlike standard grinding, honing uses an abrasive stone that follows a controlled path to create a precision finish, often used in the manufacturing of engine cylinders and hydraulic components. The classification applies regardless of whether the machine is CNC-controlled or manually operated.

Covers
  • Vertical honing machines
  • Horizontal honing machines
  • CNC honing centers
  • Lapping machines for metal finishing
  • Cylinder honing machines for automotive repair
Also under 8460.40
  • Sunnen SV-1000
  • Gehring Honing Machine
  • Lapmaster 24
  • Engis Hyprez
  • Nagel Honing Machine

Codes often confused with 8460.40

Common mistake. Honing machines are sometimes misclassified under HS code 8459, which covers machine-tools for drilling, boring, milling, threading, or tapping. While a honing machine may work on a pre-drilled hole, its primary function is finishing (abrasive) rather than cutting or boring (material removal), which places it in 8460. Another common confusion is with other subheadings of 8460, such as 8460.12 or 8460.22, which are reserved for flat-surface or cylindrical grinding machines. The distinction is the specific abrasive action; honing and lapping are distinct processes from grinding and have their own dedicated subheading at 8460.40.

84.59Machine-tools; (including way-type unit head machines) for drilling, boring, milling, threading or tapping by removing metal, other than lathes of heading no. 845884.60Machine-tools; for deburring, sharpening, grinding, honing, lapping, polishing or otherwise finishing metal, sintered metal carbides or cermets by means of grinding stones, abrasives or polishing products8460.12Machine-tools; flat-surface grinding machines, numerically controlled8460.22Machine-tools; grinding machines (excluding flat-surface), centreless, numerically controlled

Top exporters and importers of HS 846040 (the code used for honing machine), 2025

In 2025, the largest exporter of HS 846040 (the code used for honing machine) in UN Comtrade data was China, with 18% of world exports; the largest importer in UN Comtrade data was China, with 18% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 846040, not only honing machine.

Top exporters 2025 · share of world exports

  1. 1 China $61M
  2. 2 Germany $59M
  3. 3 Italy $49M

World total: $333M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 China $51M
  2. 2 United States $30M
  3. 3 Thailand $29M

World total: $285M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for honing machine

Brazil splits HS 8460.40 into 4 NCM codes. Pick the one that matches your product:

  • 8460.40.11CNC cylinder honing machines, up to 312 mm
  • 8460.40.19Other CNC honing or lapping machines
  • 8460.40.91Non-CNC cylinder honing machines, up to 312 mm
  • 8460.40.99Other non-CNC honing or lapping machines

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about honing machine

What is the HS code for Honing machine?

The HS code for Honing machine is 846040 (Machine-tools; for honing or lapping). The HS code for a honing machine is 8460.40, which includes both honing and lapping machine-tools.

How do I classify Honing machine for customs?

Honing machine is classified under HS code 846040 — Machine-tools; for honing or lapping. This is a 6-digit subheading level code.

Is a CNC honing machine classified differently?

No, both manual and CNC-operated honing machines are classified under 8460.40, though they may be distinguished at the statistical suffix level in some national tariffs.

Which countries are the top exporters of honing machine (HS 846040)?

In 2025, the top exporters of HS 846040 (the code used for honing machine) in UN Comtrade data were China ($61M, 18% of world exports), Germany ($59M) and Italy ($49M). World exports came to about $333M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of honing machine (HS 846040)?

In 2025, the top importers of HS 846040 (the code used for honing machine) in UN Comtrade data were China ($51M, 18% of world imports), the United States ($30M) and Thailand ($29M). World imports came to about $285M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Is the HS code for Honing machine the same in all countries?

The base HS code 846040 for Honing machine is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for honing machine in Brazil?

Brazil splits HS 846040 into 4 NCM codes, so the right one for honing machine depends on the product's details: 8460.40.11 (CNC cylinder honing machines, up to 312 mm), 8460.40.19 (Other CNC honing or lapping machines), 8460.40.91 (Non-CNC cylinder honing machines, up to 312 mm), 8460.40.99 (Other non-CNC honing or lapping machines).